This article is about the achievement. For the quest, see What Lies Below.
What Lies Below? is an achievement that requires the player to take the Dagon'hai's shortcut, Tunnel of Chaos, to the Chaos Altar. To access the Chaos Altar the player will need either a chaos talisman, chaos tiara, omni talisman, omni-tiara, or wicked hood with a chaos talisman added to it.
The entrance to the Tunnel of Chaos is the Saradominist statue west of the Earth Altar (there are benches next to it). Players may require excavating it prior to entering.